[John]

It's wet and windy so I've been researching and found a fascinating study of seed viability that is still running today. It was started in 1879!

How long can seeds in the ground remain viable

[GraciesGran]

Looks interesting, will read later.  Am assuming weed seeds last for ever.

[John]

Looks interesting, will read later.  Am assuming weed seeds last for ever.

Nothing lasts forever.. but I do reckon some weeds may well make it to the point where the universe becomes cold